PA 16-14 (Algo) Find a Doctor, is a small startup that helps...

Find a Doctor is a small startup that helps people find a physician that best meets their needs (location, insurance accepted, etc.). During a slow time for them, they have 9 staff members taking calls from customers. On average, one call arrives every 7 minutes. On average, each staff member spends 21 minutes with each customer..

What is the probability that one of their staff members is busy?

Note: Round your answer to 1 decimal place.